<template>
	<view class="cart-container" v-if="cart.length !== 0">
		<!-- 收货地址 -->
		<my-address></my-address>
	<view class="cart-title">
		<!-- 左侧的图标 -->
		<uni-icons type="shop" size="18"></uni-icons>
		<!-- 描述文本 -->
		<text class="cart-title-text">购物车</text>
	</view>
	<uni-swipe-action>
	<!-- 循环渲染购物车中的商品信息 -->
	<block v-for="(goods,i) in cart" :key="i">
		<!-- 这里uni-swipe-action-item组件的options属性更名为right-options，指定对应的位置，否则滑不出来 -->
		 <uni-swipe-action-item :right-options="options" @click="swipeActionClickHandler(goods)">
			 <my-goods :goods="goods" :showRadio="true" @radio-change="radioChangeHandler" :showNumberBox='true' @num-change="numberChange"></my-goods>
		 </uni-swipe-action-item>
	</block>
	</uni-swipe-action>
	
	
	<!-- 使用自定义的结算组件 -->
	<my-settle></my-settle>
	</view>
	<!-- 空白购物车区域 -->
	
	<view class="empty-cart" v-else>
		<image src="/static/cart_empty@2x.png" class="empty-img"></image>
		<text class="tip-text">空空如也~</text>
	</view>
</template>

<script>
import badgeMix from '@/mixins/tabbar-badge.js'
// 按需导入mapstate这个辅助函数
import {mapState,mapMutations} from 'vuex'
	export default {
		mixins:[badgeMix],
		computed:{
			...mapState('m_cart',['cart'])
		},
	
		data() {
			return {
				options:[{
					text:"删除",//显示的文本内容
					style:{
						backgroundColor:"#C00000" //按钮的背景颜色
					}
					
				}]
			};
		},
		watch:{
			total:{
				handler(newVal){
					this.setBadage()
				},
				immediate:true
			}
		},
		methods:{
			...mapMutations('m_cart',['updateGoodsState','updateGoodsCount','removeGoodsById']),
			radioChangeHandler(e){
				this.updateGoodsState(e)
			},
			// 商品数量发生变化后，调用
			numberChange(e){
			   console.log('e',e)
			   this.updateGoodsCount(e)
			},
			// 滑动删除
			swipeActionClickHandler(goods){
				this.removeGoodsById(goods.goods_id)
			}
		}
	
	}
</script>

<style lang="scss">
	.cart-container{
		padding-bottom: 50px;
	}
 .cart-title{
	 height: 40px;
	 display: flex;
	 align-items: center;
	 font-size: 14px;
	 padding-left: 5px;
	 border-bottom:1px solid #efefef ;
	 .cart-title-text{
		 margin-left: 10px;
	 }
	 
 }
 
 // 空白购物车的样式
 .empty-cart{
 		 display: flex;
 		 flex-direction: column;
 		 align-items: center;
 		 padding-top: 150px;
 		 .empty-img{
 			 width: 90px;
 			 height: 90px;
 		 }
 		 .tip-text{
 			 font-size: 12px;
 			 color: gray;
 			 margin-top: 15px;
 		 }
 	 }
</style>
